52 lines
1.9 KiB
Python
52 lines
1.9 KiB
Python
# Copyright 2012 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from cinder.api import extensions
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from cinder.api.openstack import wsgi
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from cinder.policies import volumes as policy
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class VolumeHostAttributeController(wsgi.Controller):
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def _add_volume_host_attribute(self, req, resp_volume):
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db_volume = req.get_db_volume(resp_volume['id'])
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key = "%s:host" % Volume_host_attribute.alias
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resp_volume[key] = db_volume['host']
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@wsgi.extends
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def show(self, req, resp_obj, id):
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context = req.environ['cinder.context']
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if context.authorize(policy.HOST_ATTRIBUTE_POLICY, fatal=False):
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volume = resp_obj.obj['volume']
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self._add_volume_host_attribute(req, volume)
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@wsgi.extends
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def detail(self, req, resp_obj):
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context = req.environ['cinder.context']
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if context.authorize(policy.HOST_ATTRIBUTE_POLICY, fatal=False):
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for vol in list(resp_obj.obj['volumes']):
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self._add_volume_host_attribute(req, vol)
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class Volume_host_attribute(extensions.ExtensionDescriptor):
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"""Expose host as an attribute of a volume."""
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name = "VolumeHostAttribute"
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alias = "os-vol-host-attr"
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updated = "2011-11-03T00:00:00+00:00"
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def get_controller_extensions(self):
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controller = VolumeHostAttributeController()
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extension = extensions.ControllerExtension(self, 'volumes', controller)
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return [extension]
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